Internal-combustion engine.



' B; J. HALL. INTERNAL COMBUSTION ENGINE. APPLIOATION FILED JUNE 13, 1911.

- Lfi ififll q v Patented Novx18, 1913.

All TNE$ Es.- N VEA/"TOFr EL 55F. T J. "k0 7i L HTT R/VEYS JELBIJIEI J. HALL, Oil WEEK BERKELEY, GALIFORNIA.

rnrzznnhncmeincsrron ENGINE.

To all whom 1' if may concern Be it known that I, Ernnn'r J. HALL, 2k citizen of the United States, and a resident of 'West ierkeley, in the county of Alameda and the State of California,.have invented certain new and useful Improvements in InternuLCombustion. LngineS, of which the 'following is a specification.

The invention relates to improvements in internal combustion engines in which a cer hurt-tor is used to volatilize the hydrocarljione before they are fed into the engine cylinders and has special reference to improve zncnts in the oiling system and carom-anon. ihe olnect of the ll'WeIllZlOn 1s i;()111CI?LS8 me efficiency oi? the engine by Warming the cerhureter and thereby obtaining a more thorough vaporize ion of the hjdrocerbons, by means oi the lubricating oil used in the engine and at the some time lowering the temperature of the oil.

During the operation of the carburetor,

the heat absorbed by the rolctilizing hydrocarbons reduces the temperature of the car?" lmreter to such a, low degree,'that frost often appears on the outer surface of the oerhnreter and the feed pipes. When such con:

ditions obtain it is evident that the hydro carbons Wiil not w'iiatilize as readily no 11' there Were sufficient heat to be absorbed and -conscquently the hydrocerhons either enter? the engine partly in the vapor state or a, -siiilichcm: supply cannot be obtained. The oil used in lubricating the bearings and cy1- inders in the engine becomes heated to 21 high degreedurin the operation of the ere gins and causes the engine to become exceec sively heated which produces many disadvantages.

By the use of the improvement of my present invention, however, these disadvanteges are overcome and a more eificient operation is obtained, The heated oil from the crank case of the engine is circulated around the ccrbureter or the manifold thereby cooling' the oil and Warming the carburetor. The cooled oil'is then conveyed back to the engine and is distributed over the various pcrts'thereoi.

With these and other objects in view, as will more fully hereinafter appeanthe invention, consists in certain novel features of construction and arrangement of parts hereinafter fully described, illustrated in the accompanying drawing and pointed out n Specification of Letters Patent.

Application filed June 13 1911.

Patent 1 IA 18, 1913 erial No. 632,919.

the appended clai1ns,-it being understood that various changes in construction and arrangemcnt of, the structure may be made- Without departing from the spirit or seer?" ficing any hf the advantages of the invention.

The drawing shows an endview of an internal combustion, engine embodying the improvements of-iny invention, parts 01 the structure being broken away to disclose the construction.

The enginemay be a main-cylinder engine of the type illustrated with the cylin ders 9 set at an angle of 90 to each other, or it may be of any other construction The pistons transfer their motion to the crank shaft 3 which is located in the crank casing 4-. Within the casing 4 and. preferably situsited above the crank shaftB is the cam-shaft.

5 which operates the valves and ignition devices. The carburetor 6 is placed in any do sired position and is connected" to the cylinders hy the conductors 7. i

' A receptacle or reservoir 8 is located heiow the crank case 4; which is provided with apertures 9 to allow the oil tofi ow fmm the creel; case into the reservoir The lower part of the crank case 4 is preferably formed. semi-circular in cross section and the apertures 9. are located above the lowest pert of theloottom so that; a qucntity of oi]. w l re main in the case to assist in lubricating the parts by the splash system.

Connected to the reservoir 8 by the condoctor 12 is an oil pump 13 ?which draws the oil from the eservoirend forces it to the carburetor 6 through' the conductorl-l. The oil pump-13 may hoof either the reciprocating' or'rotary type, and in theldrewings I have illustrated a punip of the reciprocating type which is operated from the crank shaft 3 through the eccentric 1-15 tend the connecting rod 16/ When it rotary pump is need. it may be connected to the crank shaft by suit able gearing. I do not wish to limit myself however, to ioperating the pump from the crank shaft as it may he operatedwith equal efficiency from the cam-shaft 5 or from the other moving parts of the engine. 1

Surrounding the manifold l7-of the carburetor 6 is e fluid tight casing 18, inclosing a space surrounding the manifold. This casing 18 may surround more or less ofnthe carburetor and supply pipes 7 as Y desired and I do not wish to be restricted to the ex- 'ficiency of the action cool Oll passes out of the cann not showing made by the drawing. The warm oil flowing in. conductor 14: passes into the space surrounding the manifold 17, where it is cooled, transferring its heat to the manifold and thereby increasing the ef- 'nc The g 18 through the conductor 19 which conveys it back to the crank case.- 1

As a means of distributing the oil over the ".moving parts in the crank case, I prefer to use the hollow camshaft 5 which is provided with apertures 21 at the proper points to allow the oil to drop therefrom onto the surfaces to be lubricated. The conductor 19 is connected with the interior of the camshaft at one end and deposits the cool oil therein.

Other methods of distributing the cool oil may be employed and I do not desire to limit myself to the methods shown and described.

I claim:

1. Ehe combination with an internal co1nbustion engine having an oiling system and a carhureter of a closed conductor connected at both ends with the engine and extending into close relation, to said cerbureter and means operated by the engine for circulating the oil through said conductor.

2. The combination with an internal coinbustion engine having an oiling system, and a carbureter, of a pump operative by the en- .gine connected to said oiling system, a casing surrounding the carbureter, a conductor extending from the pump into said casing and a second conductor extending from the casing back to the oiling system.

3. The combination with an internal coin- -bustion engine and a carburetor partly surrounded by a fluid tight casing, of a lubricating oil reservoir on the crank case of the engine adapted to receive oil from said crank case, a conductor connecting said reservoir with the casing surrounding the carbureter, a pump in said conductor arranged to be operated by the engine, and a conductor for conducting the oil from the carbureter casing to the engine.

e. T he combination with an internal combustion engine having a hollow apertured camshaft and a carbureter having a casing surrounding the same, of a means for forcing the lubricating oil from the c ank case of the engine through the casing surround ing the carburetor and into the hollow camshaft.

5. The combination with an internal combustion engine having an oiling system and a carbureter, of a pump connected to said oiling system adapted to be operated by the engine, a conductor extending from the pump to the carbureter and adapted to convey the oil into thermal contact with the carbureter and a conductor for returning the oil to the engine.

. ELBERT J. HALL. Witnesses:

H. G. Pnosr, R. HEFFERNAN. 

